With his career in jeopardy, you'd think that Dr. Will Halstead (Nick Gehlfuss) would be exercising caution on Chicago Med. But on Tuesday's episode, he makes a call that ends up putting another patient's life at risk.

Complicating matters is the fact that the patient in question is an old high school classmate who, along with his brother, has a tumultuous past with Halstead. Needless to say, the healthy sibling isn't too pleased when his brother starts to convulse and requires emergency intervention from Will. Will Halstead end up on the receiving end of another lawsuit?

Check out a sneak peek of the episode here:

Chicago Med airs Tuesdays at 9/8c on NBC.